Electric engine



H. MACE. -ELECTRIQ ENGINE. APPLICATION FILED FEB. 6', 1920.

1,428,489. PatentedSept. 5, 1922.

INVENTOR ATI'ORNEY H. MACE.

Paten cedSept. 5,1922.

2 SHEETS-SNEFT 2.

#0016017 fiface Patented Sept. 5, 1922. i

PATENT OFFICE.

nknmsoicr amen, or sinnwoon, SASKATCHEWAN, cANAnAQj nrncriuc panel-NE.

Application filed-February 6,4920. 'Serial No. 356;723.

To {ZZZ whom it may cancer-n:

Be itknown that I, HAnRrsoN MACE, a cit-izen of the Dominion of Canada,residing at Sidewood, in the Province of Saskatchewan and Dominion ofCanada, have invented new and usefulImprovements in Electric Engines, ofwhich the following is a specification. I i I This invent-ion relates toelectric or'magnetic engines, the object in view being to produce asimple engine of the class describedwhi'ch will operate in a positivemanner and which may be easily'sta-rted so as to rotate the crank shaftthereoi'ineither direction aslniay'be desired.

A; further object oi the invention is to pro- "vide in connection withan engine of the class above referred to, manually operable meanswhereby the-engine may be started and stopped and reversed as to thedirection oi rotation of the crankshaft.

lVith the above and other objects in view, the invention consists in thenovel construction, combination and arrangement herein fully described,illustrated and claimed.

In the accompanying drawings: Figure. 1 is a plan view of the engine.Figure 2 is a. side elevation of the same, part taken in section alongthe line 2-2 of Figure 1.

which are fastened to the bed plate 1 by means of clamping straps 41said electromagnets being therefore immovable. The magnets 2 and 3 arearranged in end to end and spacedrelation to each other so as toaccommodate the back and forth or reciprocatory movement between'thesame of an armature 5 shown in the form of a disk of soft iron having aseries of pins 6 extending in opposite directions therefrom toward themag nets 2 and 3 so as to be attracted by said magnets. The magnets 2and 3 are formed with longitudinal bores or guideways 7 in whichisslidably received a guiding member or rod 8 preferably of brass or anyother suitable material.

I The'rod 8 extends entirely through themagnets2 and 3 and has connectedthereto by means of a pivot 9 a pitman or connecting rod 10..whichextends to the wrist pin ofa' crank disk 11 mounted ".fastion oneendof acrank shaft12which is journaled in bearings 13 "secured to and extending upwardly from the bed plate 1, said shaft being provided with acombined fly wheel. and'band wheellt as shown. The arj e 5 is rigidlysecured upon the rod 8 y y l able means. i I

Thecrank shaft 12has fastthereon an cecentric 15 around which is aneccentric strap .16 having a holding arm 17 which is pivotally connectedto a block 18 adjustable in a guide 19 which isadjustably secured to asupport or arm 20 attached'to the adjacent bearing 13. wTheastrap:16isthus pivotally and slidably mounted so as to admit of the rotationof the eccentric 15 within said strap.

Extending from the strap 16 is a connecting rodor link 21, the samebeing connected by a pivot 22 to an upright lever 23 which is pivotallymounted at 241 on a support 25 secured to and extending upwardly fromthe bed plate 1. 'Pivotally connected to the lower end of the lever 23is another connectby a joint 27 to an arm or extension 28 extendinglaterally from a longitudinally slidable switch bar 29, the latter beingslidable through bearings 30 secured to and extending upwardly from thebed plate 1.

' Arranged in the path of the slidable switch bar 29 are two brushes 31secured to and insulated from said plate 1. Flexibly connected to theswitch bar, 29 is a circuit wire 32 extending to a battery or othersource of electrical energy 33, a wire 34; extending from said battery33 to the magnet 2 and by an extension wire 35 to the magnet 3. Fromoneofthe brushes 31, a wire 36 leads to the magnets 2 and from theother1 brush 31 another wire 37 leads to the magnet 3. Due to sucharrangementof wires and circuits as the sliding switch bar 21) reaches the limit ofits movement in one direction, one of the magnets is energized. and whensaid switch bar moves in the opposite direction, the other magnet isenergized. As a result, the armature 5 is attracted back and forth or inother words a reciprocatory movement is imparted thereing rod or link26,,the latter being connected 3 to and due to the mechanical connectiondescribed, the rotary motion is imparted to the crank shaft 12, fromwhich by means of the eccentric controlled connection, reciprocatorymotion is imparted to the slidable push bar 29 for the purpose abovedescribed, of alternately energizing and de-energizing the magnets inthe way described.

In connect-ion with the mechanism above described, I employ a hand lever38 adapted to be held at any point of adjustment by means of a notchedrock 39 secured to the bed plate 1. A. rod 40 connects the lever 38 withthe upwardly extending arm ll of the eccentric 16 so that by movement ofthe lever 38, the sliding switch bar 29 may be moved into contact witheither one of the brushes 31 for the purpose of starting the engine in acertain direction as decided upon by the operator in advance. By thesame means, the engine may be stopped and the direction of rotation ofthe crank shaft reversed.

The engine hereinabove described is simple in construction, reliable inoperation and may of course be made in any size to give any desiredpower required.

What I claim is An electric engine comprisingin combination a pair ofelectr0-magnets having their cores provided with guide bores, a rodhaving its end portions slidable through said bores, an armature securedupon said rod and moveable between the magnet cores, a support, a crankshaft journaled through said support and having a crank portion, a linkconnected with said rod and with said crank portion, a magnetcontrolling circuit including two contacts, and a reciprocatory switchbar adapted to contact therewith alternately, an eccentric cam on saidshaft, a strap encircling said cam and having an arm, a guide pivotedupon said support, a slide movable within said guide and piv otallyconnected with said arm, a rod connected with said arm and with saidreciprocatory switch bar, and means connected with said guide whereby toreverse its position for bringing the switch bar initially in engagementwith either of said contacts, said means comprising a pivoted lever, alink connected with said lever and with said arm, and a notched segmentmoved over by the lever and adapted to hold the latter in se lectedposition.

In testimony whereof I afiix my signature.

HARRISON MACE.

